On Dec 10, 2013, at 2:12 PM, H.J. Lu <[email protected]> wrote:
> On Tue, Dec 10, 2013 at 11:05 AM, Tejas Belagod <[email protected]> wrote:
>> ...
>> So, if (subreg:DI (match_operand:V4SF 1 "register_operand" "x,x") 0) is a
>> valid subreg, why not allow it in CANNOT_CHANGE_MODE_CLASS (like in Kirill's
>> patch http://gcc.gnu.org/ml/gcc-patches/2013-12/msg00987.html) and resolve
>> the actual register later in subreg_get_info ()?
>
> Let's wait for Kirill's results on GCC testsuite.
I'm puzzled. What is the connection between testsuite results and a design
decision about a code change? The question remains valid even if the testsuite
didn't exist at all.
paul
